interface SpeakHello {
    void speak();
}
class HelloMachine {
    public  void turnOn(SpeakHello hello){
        hello.speak();
    }
}
public class p165 {
    public static void main(String[] args) {
        HelloMachine machine=new HelloMachine();
        machine.turnOn(new SpeakHello() {
            @Override
            public void speak() {
                System.out.println("hello,you are welcome!");
            }
        });
        machine.turnOn(new SpeakHello() {
            @Override
            public void speak() {
                System.out.println("你好!");
            }
        });
    }
}
